Home / 20,404.20-30,600.13-7,255.88

Finding the Fourth Proportional to 20,404.20, 30,600.13 and 7,255.88

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Solution

The fourth proportional to 20,404.20, 30,600.13 and 7,255.88 is: 10,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.20 : 30,600.13 = 7,255.88 : x
  2. Step 2: Convert to fraction form
    20,404.20/30,600.13 = 7,255.88/x
  3. Step 3: Cross multiply
    20,404.20x = 30,600.13 × 7,255.88
  4. Step 4: Simplify right side
    20,404.20x = 222,030,828.48
  5. Step 5: Solve for x
    x = 222,030,828.48/20,404.20
  6. Step 6: Final answer
    x = 10,881.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.